Influence of water stress on endogenous hormone contents and cell damage of maize seedlings

Journal of Integrative Plant Biology
Chunrong WangJuren Zhang

Abstract

Phytohormones play critical roles in regulating plant responses to stress. We investigated the effects of water stress induced by adding 12% (w/v) polyethylene glycol to the root medium on the levels of abscisic acid (ABA), indole-3-acid (IAA), zeatin (ZT), and gibberellin(3) (GA(3)) in maize leaves. The results suggested that water stress had significant effects on the four hormone levels. There was a transient increase in the IAA content during the initial stage of adaptation to water stress in maize leaves, but it dropped sharply thereafter in response to water stress. ABA content increased dramatically in maize leaves after 24 h of exposure to water stress, and then the high levels of ABA were maintained to the end. The contents of ZT and GA(3) rapidly declined in maize leaves subjected to water stress. The effects of water stress on chlorophyll content, electrolyte leakage and malondialdehyde levels in maize leaves were also studied. The variation of cell damage was negatively correlated with ZT and GA(3) levels in maize leaves under water stress. Thus, we explored the roles of ZT and GA(3) on the growth of maize seedlings under water stress by exogenous application. It is possible that both ZT and GA(3) were effective in ...Continue Reading

References

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Oct 29, 1982·Science·J S Boyer

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Citations

Aug 14, 2009·The New Phytologist·Quoc Truong HoangJeong Sheop Shin
May 31, 2015·Plant Science : an International Journal of Experimental Plant Biology·Harin JungJu-Kon Kim
May 21, 2016·Frontiers in Plant Science·Saroj K SahJiaxu Li
Nov 2, 2016·The Plant Journal : for Cell and Molecular Biology·Feroza K ChoudhuryRon Mittler
Jul 22, 2016·F1000Research·Supratim BasuAndy Pereira
Jul 20, 2019·Plants·Cátia BritoCarlos M Correia
Oct 28, 2019·3 Biotech·Jackson KhediaPradeep K Agarwal
Mar 13, 2020·G3 : Genes - Genomes - Genetics·Cheng HeSanzhen Liu
Oct 5, 2018·Environmental Science and Pollution Research International·Abid UllahShah Fahad
Oct 6, 2020·The Plant Journal : for Cell and Molecular Biology·Amith R DevireddyRon Mittler
Aug 19, 2017·Plant Science : an International Journal of Experimental Plant Biology·Songlin HuThomas Lübberstedt
Dec 20, 2013·The Journal of Experimental Biology·Ellen H ColebrookPeter Hedden
Jun 3, 2021·International Journal of Molecular Sciences·Tej Man TamangSunghun Park

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